A bag contains purple marbles and yellow marbles, 86 in total. The number of purple marbles is 2 more than 5 times the number of yellow marbles. How many purple marbles are there?
This similar question will help you:
https://www.quora.com/A-bag-contains-purple-marbles-and-red-marbles-43-in-total-The-number-of-purple-marbles-is-1-less-than-3-times-the-number-of-red-marbles-How-many-purple-marbles-are-there